E-Cigarette Preheating Control for Cold Viscosity

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Solution Overview

Problem

Electronic cigarettes struggle to vaporize cigarette liquid in cold conditions due to increased viscosity and reduced fluidity, leading to inefficient vapor production when initially used in cold environments.

Innovation Solution

An electronic cigarette preheating control method and system that sets preheating parameters and routines in a microcontroller, using a communication connection between an intelligent terminal and the device to control heating based on real-time temperature, ensuring the cigarette liquid is preheated before use, with automatic shut-off and re-heating functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the electronic cigarette is used in cold conditions without preheating, then the device structure remains simple, but the cigarette liquid viscosity increases and fluidity reduces, preventing effective vapor production

Engineering Contradiction:
Improvevapor production effectivenessVSAvoidpreheating control system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements preheating control that activates the heating device before the user draws on the electronic cigarette, particularly in cold conditions. This preliminary heating action warms the cigarette liquid in advance, reducing its viscosity and improving fluidity before vaporization is needed, thereby ensuring effective vapor production without requiring complex manual intervention

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The heating device automatically detects temperature conditions and activates preheating functions without user input. The system monitors the temperature and autonomously decides when preheating is necessary, performing the warming function automatically to maintain optimal liquid properties for vaporization

Inventive Principle:
Principle #25Self-service

2Reliability

If preheating is activated in cold conditions, then the cigarette liquid viscosity is reduced and fluidity is improved, but additional heating control components and routines are required

Engineering Contradiction:
Improvevapor production consistencyVSAvoidheating control system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent changes the temperature parameter of the cigarette liquid by activating the heating device. The system monitors temperature conditions and adjusts the heating parameters accordingly, warming the liquid to an optimal temperature range that reduces viscosity and ensures consistent vapor production across different environmental conditions

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system incorporates temperature detection and control feedback mechanisms that monitor the heating process and adjust preheating duration and intensity based on actual temperature conditions. This feedback loop ensures reliable vapor production by maintaining optimal liquid temperature without requiring overly complex manual control systems

Inventive Principle:
Principle #23Feedback

3Productivity

If no preheating control is provided, then the device structure remains simple, but the cigarette liquid cannot be effectively vaporized when initially turned on in cold environments

Engineering Contradiction:
Improvevapor production efficiencyVSAvoidpreheating control mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary heating of the cigarette liquid before the user attempts to vaporize it, particularly when cold conditions are detected. This preheating action ensures the liquid is in an optimal state for vaporization, dramatically improving productivity by preventing the common failure mode of insufficient vapor production in cold environments

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The preheating control mechanism counteracts the harmful effect of cold temperature on liquid viscosity and fluidity before vaporization is attempted. By applying heat in advance, the system prevents the liquid from being too thick or viscous to vaporize effectively, thereby maintaining high productivity across varying environmental conditions

Inventive Principle:
Principle #9Preliminary anti-action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively reduces viscosity and increases fluidity of the cigarette liquid, allowing for efficient vapor production even in cold conditions by preheating the liquid before use, ensuring consistent performance.

Implementation Method 1

the viscosity of the cigarette liquid or tobacco tar or liquid substances containing drugs of the electronic cigarette is increased and the fluidity thereof is reduced at low temperature... preheats the cigarette liquid or liquid substances containing drugs by means of the heating device... to facilitate production of the vapor

Methodology Applied
Scientific EffectViscosity reduction through heating: Heating

Data Source

PatentEP3939452B1Electronic cigarette preheating control method and preheating control system
Publication Date: 2023.07.26 HUIZHOU HAPPY VAPING TECH LTD
  • EP3939452B1 patent drawingFigure 1
  • EP3939452B1 patent drawingFigure 2
  • EP3939452B1 patent drawingFigure 3

AI summary

An electronic cigarette preheating control method and preheating control system are provided. The method performs data interaction by communication connection established between an intelligent terminal and the electronic cigarette, allows for displaying and changing preheating parameters on a control software interface of the intelligent terminal, and sends the updated preheating parameters to the microcontroller MCU arranged in the electronic cigarette to replace previous preheating parameters preset in the microcontroller MCU. When the electronic cigarette is turned on, based on real-time temperature value detected by temperature detection unit arranged in the electronic cigarette, determining whether preheating of the cigarette liquid stored inside the liquid storage chamber is required by means of the microcontroller MCU. If yes, based on preheating parameters and preset routine, controlling the heating device of the electronic cigarette by means of the microcontroller MCU to perform heating for the preset heating time or until the preset target temperature value is reached. Then, ending the preheating and entering the available stand-by state of the electronic cigarette. After preheating, the cigarette liquid or liquid substances containing drugs may easily penetrate or flow to the heating device for vaporization, such that the electronic cigarette may easily produce vapor even at low temperature.